CN108587403A - A kind of food cover inner-wall paint and its preparation method and application - Google Patents
A kind of food cover inner-wall paint and its preparation method and application Download PDFInfo
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- CN108587403A CN108587403A CN201810474928.1A CN201810474928A CN108587403A CN 108587403 A CN108587403 A CN 108587403A CN 201810474928 A CN201810474928 A CN 201810474928A CN 108587403 A CN108587403 A CN 108587403A
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- Prior art keywords
- cover inner
- wall paint
- food cover
- solvent
- food
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
- B05D7/26—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials synthetic lacquers or varnishes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
To overcome existing epoxy-phenol resin paint to there is the problem of needing to carry out secondary coating, influence processing efficiency, the present invention provides a kind of food cover inner-wall paint, it is in terms of 100% by the quality of the food cover inner-wall paint, including following mass component：Epoxy resin 20~40%；Phenolic resin 4~8%；Toughener 1~6%；Adhesion promoter 0.2~1.0%；Catalyst 0.05~0.20%；Increase sliding wax 0.1~0.5%；Organic solvent surplus.Meanwhile the invention also discloses the preparation method and applications of above-mentioned food cover inner-wall paint.Food cover inner-wall paint provided by the invention can realize that primary coating reaches coated film weight 10gsm or so, and be molded by 205 DEG C/10 15min baking process, simplify double painting techniques of traditional epoxy-phenol resin paint.
Description
Technical field
The invention belongs to package coating technical fields, and in particular to a kind of food cover inner-wall paint and preparation method thereof and
Using.
Background technology
It is higher and higher to the resistance requirements of tank body as domestic beverage types are more and more, such as coconut juice protein drink
Material requires coating to have certain Sulfur tolerance, such as apple vinegar acidic beverages, acid resistance, compactness to coating, adhesive force etc.
There is higher requirement.
Epoxy resin is widely used in due to its excellent adhesive force, chemical resistance in metal packaging coating, common food
The organic coating of package coating has epoxy novolac type and epoxy amino etc., epoxy amino coating to have excellent acid resistance, still
Flexibility is poor, and coating damage is susceptible to during cover processing and manufacturing, causes coating compactness insufficient, influences food guarantor
It deposits and flavor.
Usual cover inner-wall paint is made of epoxy-phenol resin paint and PVC organosol paints, epoxy-phenol resin paint conduct
Primary coat adhesive force on base material is excellent, and PVC organosols are applied as face has fabulous flexibility, acid resistance and digestion resistant
Performance.But there are vinyl chloride monomer residue problem, the remaining vinyl chloride of PVC to be assert to human carcinogen by WHO for PVC organosols,
It can be oozed out from PVC more than 60 DEG C, contaminated food products.Containing plasticizer, heat stabilizer etc. in PVC, these small-molecule substances also can
It moves in content, there are potential risk, PVC heating can release HCl gases, have stimulation to human body for food-safe property
Property effect.
Due to the coating characteristic of existing epoxy-phenol resin paint and PVC organosol paints, the film thickness of single film is relatively low,
When carrying out epoxy-phenol resin paint and PVC organosol paints and being coated with, technique in two steps is needed, bottom coating focuses on 5gsm or so, and 180
DEG C baking 10-15min, face film focus on 5gsm or so, and 205 DEG C of baking 10-15min, this double techniques that apply largely drop
Low coating efficiency.
Invention content
It needs to carry out secondary coating for the problem that existing epoxy-phenol resin paint exists, influences processing efficiency, the present invention carries
A kind of food cover inner-wall paint and its preparation method and application is supplied.
Technical solution is as follows used by the present invention solves above-mentioned technical problem：
On the one hand, the present invention provides a kind of food cover inner-wall paints, with the quality of the food cover inner-wall paint
For 100% meter, including following mass component：
According to food cover inner-wall paint provided by the invention, PVC organosol paints are substituted completely, are had soft well
Toughness and corrosion resistance are suitable for easy open cover (RPT), are applied in environmental protection lid (SOT), be suitable for storage soda, beer, function
Beverage, dairy products etc., boiling non-whitening, adhesive force is good, no plumage film.Meanwhile this kind of food cover inner-wall paint passes through ingredient
Optimization design can realize that primary coating reaches coated film weight 10gsm or so, and pass through a 205 DEG C/10-15min Roaster
Skill is molded, and simplifies double painting techniques of traditional epoxy-phenol resin paint.
Optionally, the epoxide equivalent of the epoxy resin is 1000~6000g/eq.
Optionally, the toughener includes polyurethane modified epoxy resin, polyether modified epoxy, rubber modified epoxy, gathers
It is one or more in ester dihydric alcohol and polyurethane diol.
Optionally, the adhesion promoter includes that acrylic compounds adhesion promoter, polyesters compound are attached
It is one or more in adhesion promoter, phosphate adhesion promoter.
Optionally, the catalyst includes one or more in phosphoric acid, hydroxyl/carbon oxygroup phosphate compound.
Optionally, the sliding wax of the increasing includes polyethylene wax, polypropylene wax, polytetrafluoroethylwax wax, palm wax, oxidic polyethylene
Wax and chlorinated polypropylene wax it is one or more.
Optionally, the organic solvent includes aromatic hydrocarbon solvent, alcohols solvent, ether solvent, esters solvent and ketone
Solvent it is one or more；
The aromatic solvent include toluene, dimethylbenzene, trimethylbenzene, Solvesso100, Solvesso120 and
It is one or more in Solvesso150；The alcohols solvent includes in n-butanol, isobutanol, diacetone alcohol and dipropylene glycol
It is one or more；The ether solvent include glycol ether, ethylene glycol monobutyl ether, butyl, ethylene glycol phenyl ether and
It is one or more in propylene glycol monomethyl ether；The esters solvent includes propylene glycol methyl ether acetate, dimethyl ester solvent, acetic acid fourth
Ester and binary acid esters in the mixed solvent it is one or more；The binary acid esters mixed solvent include dimethyl succinate,
It is a variety of in dimethyl glutarate, dimethyl adipate；The ketones solvent includes methyl iso-butyl ketone (MIBK), isophorone and hexamethylene
It is one or more in ketone.
Optionally, it is in terms of 100% by the quality of the food cover inner-wall paint, further includes following mass component：
Moistening flatting agent 0.05~0.20%
The moistening flatting agent includes organo-silicon compound, acrylate compounds, acetylenic glycols ethoxy compound and mine
It is one or more in object oil compounds.
On the other hand, the invention discloses a kind of preparation methods of food cover inner-wall paint as described above, including with
Lower step：
Epoxy resin solution is prepared by the dissolving of part organic solvent in epoxy resin；
Under stirring, epoxy resin solution, phenolic resin and toughener are added into remaining organic solvent, stirred
It mixes uniformly；Adhesion promoter, catalyst is added and increases sliding wax, is stirred under 900~1000rpm, obtains the painting of food cover inner wall
Material.
Optionally, containing admittedly for the epoxy resin solution is 30~40%.
On the other hand, the invention discloses a kind of food cover inner-wall paints as described above in food sheet material roller coating work
Application in skill.
Specific implementation mode
In order to make the technical problems, technical solutions and beneficial effects solved by the present invention be more clearly understood, below in conjunction with
Embodiment, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to explain
The present invention is not intended to limit the present invention.
One embodiment of the invention provides a kind of food cover inner-wall paint, with the quality of the food cover inner-wall paint
For 100% meter, including following mass component：
The food cover inner-wall paint is free of PVC, can substitute PVC organosol paints completely, has flexible well
Property and corrosion resistance, be suitable for easy open cover (RPT), environmental protection lid (SOT) in apply, be suitable for storage soda, beer, function drink
Material, dairy products etc., boiling non-whitening, adhesive force is good, no plumage film.Meanwhile this kind of food cover inner-wall paint passes through the excellent of ingredient
Change design, can realize that primary coating reaches coated film weight 10gsm or so, and pass through a 205 DEG C/10-15min baking process
Molding, simplifies double painting techniques of traditional epoxy-phenol resin paint.
In some embodiments, the epoxide equivalent of the epoxy resin is 1000~6000g/eq.
In some embodiments, the epoxy resin is mixed to form asphalt mixtures modified by epoxy resin liposoluble at least partly described organic solvent
Liquid, containing admittedly for the epoxy resin solution is 30~40%, and in a preferred embodiment, the organic solvent is ethylene glycol fourth
Ether, containing admittedly for the epoxy resin solution is 35%.
Toughener provided by the invention is used to improve the flexibility of coating, is suitable for the coating of food can cover structure, avoids
Coating falls off during following process.
In some embodiments, the toughener includes polyurethane modified epoxy resin, polyether modified epoxy, modified rubber
It is one or more in epoxy, polyester diol and polyurethane diol.
In a more preferred embodiment, the toughener is selected from Ai Di sections EPU-11F, EPU-73B, EP-4000, EP-
1307, one or more in EPR-1415-1.
Adhesion promoter provided by the invention is for improving between the food cover inner-wall paint and food cover
Compatibility, and then improve the adhesive force of food cover inner-wall paint.
In some embodiments, the adhesion promoter includes acrylic compounds adhesion promoter, polyesters
It is one or more in compound adhesion promoter, phosphate adhesion promoter.
In a more preferred embodiment, the acrylic compounds adhesion promoter be preferably KEPER951,
It is one or more in KEPER922, Shenzhen Sa Bisi KAYEMER PM-2.
The polyesters compound adhesion promoter is preferably Pusolit WH, Plusolit AP, the U.S.
KEPER925,926,927, Cigna WE-D311, ELNT5003 are one or more in German degussa LTW.
The phosphate adhesion promoter is preferably cyanogen spy Additol XL180, LUBRIZOL2061,
It is one or more in LUBRIZOL2063, the modest ADP of moral.
Catalyst provided by the invention is acid catalyst, and the curing efficiency for improving coating shortens hardening time.
In some embodiments, the catalyst includes one kind or more in phosphoric acid, hydroxyl/carbon oxygroup phosphate compound
Kind.
In a more preferred embodiment, the catalyst is selected from cyanogen spy Cycat XK 406N, Jin Shi NACURE4046,
It is one or more in NACURE XC-C207, NACURE 4167, NACURE 4575.
The rheological characteristic provided by the invention for increasing sliding wax and being used to improve coating, is conducive to the raising of coating film thickness.
In some embodiments, the sliding wax of the increasing includes polyethylene wax, polypropylene wax, polytetrafluoroethylwax wax, palm wax, oxygen
Change the one or more of polyethylene wax and chlorinated polypropylene wax.
In a more preferred embodiment, the sliding wax of the increasing is selected from Bi Ke chemistry ceraflour 981, ceraflour 996,
Ceraflour 991, ceraflour 925, ceracol 604, ceracol 609N, three leaf FS-731MG, FS-731MG,
CSP-321BG, U.S. micro mist MPP-620XF, polyfluo 120, one kind in Synfluo 180XF, MicroKlear 116
Or it is a variety of.
In some embodiments, the organic solvent includes that aromatic hydrocarbon solvent, alcohols solvent, ether solvent, esters are molten
Agent and ketones solvent it is one or more.
Specifically, the aromatic solvent include toluene, dimethylbenzene, trimethylbenzene, Solvesso100, Solvesso120 and
It is one or more in Solvesso150；The alcohols solvent includes in n-butanol, isobutanol, diacetone alcohol and dipropylene glycol
It is one or more；The ether solvent include glycol ether, ethylene glycol monobutyl ether, butyl, ethylene glycol phenyl ether and
It is one or more in propylene glycol monomethyl ether；The esters solvent includes propylene glycol methyl ether acetate, dimethyl ester solvent, acetic acid fourth
Ester and binary acid esters in the mixed solvent it is one or more；The binary acid esters mixed solvent include dimethyl succinate,
It is a variety of in dimethyl glutarate, dimethyl adipate；The ketones solvent includes methyl iso-butyl ketone (MIBK), isophorone and hexamethylene
It is one or more in ketone.
In other embodiments, the organic solvent is further selected from is suitable for the solvent of food coating in other.
In some embodiments, it is in terms of 100% by the quality of the food cover inner-wall paint, further includes following quality group
Point：
Moistening flatting agent 0.05~0.20%
Moistening flatting agent provided by the invention is used to improve the flow leveling of coating.
The moistening flatting agent includes organo-silicon compound, acrylate compounds, acetylenic glycols ethoxy compound and mine
It is one or more in object oil compounds.
Another embodiment of the present invention provides a kind of preparation method of food cover inner-wall paint as described above, including
Following steps：
Epoxy resin solution is prepared by the dissolving of part organic solvent in epoxy resin；
Under stirring, epoxy resin solution, phenolic resin and toughener are added into remaining organic solvent, stirred
It mixes uniformly；Adhesion promoter, catalyst is added and increases sliding wax, is stirred under 900~1000rpm, obtains the painting of food cover inner wall
Material.
In some embodiments, containing admittedly for the epoxy resin solution is 30~40%.
In some embodiments, moistening flatting agent has been additionally added it in the preparation method.
Another embodiment of the present invention provides a kind of food cover inner-wall paint as described above in food sheet material roller
Apply the application in technique.
The food cover inner-wall paint can form the coating of film weight 10gsm or more in sheet material roller coating technology, simplify
Traditional double painting techniques, improve production efficiency.
The present invention is further detailed by the following examples.
1 paint ingredient of table forms (unit：g)
Embodiment 1
The present embodiment is including following for illustrating a kind of food cover inner-wall paint disclosed by the invention and preparation method thereof
Operating procedure：
According to preparation material shown in embodiment 1 in table 1；Its epoxy resin spent glycol monobutyl ether is made solid containing being 35%
Resin solution YD-020 (35%), YD-019 (35%), YD-014 (35%).
Into mixing kettle be added propylene glycol methyl ether acetate, ethylene glycol monobutyl ether, n-butanol, Solvesso100 and
Solvesso150, under stirring, by epoxy resin solution YD-020 (35%), YD-019 (35%), YD-014
(35%), phenolic resin PR898 and toughener K-FLEX 188 is added into mixing kettle, stirs evenly, and coating presents transparent；So
Adhesion promoter ADP, catalyst CYCAT XK 406N are added afterwards, increases sliding wax Synfluo 180XF, CSP-321BG and wetting
It is stirred under levelling agent BKY016,900~1000rpm, is uniformly mixed and obtains food cover inner-wall paint.
Embodiment 2
The present embodiment is including following for illustrating a kind of food cover inner-wall paint disclosed by the invention and preparation method thereof
Operating procedure：
According to preparation material shown in embodiment 2 in table 1；Its epoxy resin spent glycol monobutyl ether is made solid containing being 35%
Resin solution YD-020 (35%), YD-019 (35%), YD-014 (35%).
Into mixing kettle be added propylene glycol methyl ether acetate, ethylene glycol monobutyl ether, n-butanol, Solvesso100 and
Solvesso150, under stirring, by epoxy resin solution YD-020 (35%), YD-019 (35%), YD-014
(35%), phenolic resin PR898 and toughener K-FLEX 188 is added into mixing kettle, stirs evenly, and coating presents transparent；So
Adhesion promoter ADP, catalyst CYCAT XK 406N are added afterwards, increases sliding wax Synfluo 180XF, CSP-321BG and wetting
It is stirred under levelling agent BKY016,900~1000rpm, is uniformly mixed and obtains food cover inner-wall paint.
Embodiment 3
The present embodiment is including following for illustrating a kind of food cover inner-wall paint disclosed by the invention and preparation method thereof
Operating procedure：
According to preparation material shown in embodiment 3 in table 1；Its epoxy resin spent glycol monobutyl ether is made solid containing being 35%
Resin solution YD-020 (35%), YD-019 (35%), YD-014 (35%).
Into mixing kettle be added propylene glycol methyl ether acetate, ethylene glycol monobutyl ether, n-butanol, Solvesso100 and
Solvesso150, under stirring, by epoxy resin solution YD-020 (35%), YD-019 (35%), YD-014
(35%), phenolic resin PR898 and toughener K-FLEX 188 is added into mixing kettle, stirs evenly, and coating presents transparent；So
Adhesion promoter ADP, catalyst CYCAT XK 406N are added afterwards, increases sliding wax Synfluo 180XF, CSP-321BG and wetting
It is stirred under levelling agent BKY016,900~1000rpm, is uniformly mixed and obtains food cover inner-wall paint.
Comparative example 1
This comparative example uses existing commercially available food cover inner-wall paint, epoxy primary coat+organosol face to apply.
Performance test
In the food cover that the food cover inner-wall paint and comparative example 1 be prepared to above-described embodiment 1~3 provides
Wall coating carries out following performance test：
It is coated on aluminium base with 20# bars by food cover inner-wall paint, 205 DEG C of baking 12min, completion of cure, inspection
Survey dry film weight.
Mode is applied according to sheet above food cover inner-wall paint is respectively coated on aluminium and tinplate, detect its property
Can, performance is as shown in table 2.
Different, such as beer according to the food cans content to be filled, dairy products, mixed congee etc., the detection of clad plate main performance
Have：85 DEG C/30min of boiling, distilled water, 2% citric acid solution boil 121 DEG C/30min, distilled water, 2% citric acid solution
Boil 127 DEG C/45min.
Boiling is whitened V/W in the present invention：Indicate the state of blush in test board gas phase and liquid phase.Number 1~10：Test knot
Fruit is divided into 1~10 grade, and 10 indicate best, and 1 indicates worst, and 6 following presentations cannot receive.
Coating integrity is tested：206 basic lids are made by punching press in clad plate, survey conducting value before and after boiling, and
5min is impregnated in the copper-bath (wherein containing 10% hydrochloric acid) of mass percent 20%, observes corrosion condition.
Adhesive force is tested：Acid boils, before and after boiling, and fork is drawn with cross-cut tester, at " # " shape, with being seen after 3M companies tape pull 3 times
It examines, contrast properties difference.Adhesion results standards of grading are divided into 0~10 grade, wherein " 0 grade " represents the painting in this region 100%
Material bonds, and does not fall completely, and " 1 grade " represents the paint adhesion in this region 90%, and 10% has fallen, and so on, " 10 grades " representatives
Light is all fallen in this region, without any adhesive force.
Friction coefficient (COF) is tested：U.S.'s ALTEK9505A3 instruments (counterweight 2Kg, speed 508mm/min).
Resistance to butanone (MEK) test：With the iron hammer of 6 layers of gauze wrapped 1kg, butanone (MEK) solvent of immersion liquid state, then back and forth
To rub tested surface, one is denoted as once back and forth for movement, exposes metal base until coating damages, and record wiping number is
For MEK values.
2 clad plate performance test of table
By the test result of table 2 it is found that compared to existing food cover inner-wall paint, using food provided by the invention
Cover inner-wall paint can effectively improve the dry film weight of molding coating, improve production efficiency；Food cans provided by the invention simultaneously
Lid inner-wall paint, which is formed by coating, also has preferable adhesive force, corrosion resistance and high temperature resistant boiling performance.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (11)
1. a kind of food cover inner-wall paint, which is characterized in that by the quality of the food cover inner-wall paint be 100% in terms of,
Including following mass component：
2. food cover inner-wall paint according to claim 1, which is characterized in that the epoxide equivalent of the epoxy resin is
1000~6000g/eq.
3. food cover inner-wall paint according to claim 1, which is characterized in that the toughener includes polyurethane-modified
It is one or more in epoxy resin, polyether modified epoxy, rubber modified epoxy, polyester diol and polyurethane diol.
4. food cover inner-wall paint according to claim 1, which is characterized in that the adhesion promoter includes propylene
Acid compounds adhesion promoter, polyesters compound adhesion promoter, one kind in phosphate adhesion promoter or
It is a variety of.
5. food cover inner-wall paint according to claim 1, which is characterized in that the catalyst include phosphoric acid, hydroxyl/
It is one or more in carbon oxygroup phosphate compound.
6. food cover inner-wall paint according to claim 1, which is characterized in that the sliding wax of the increasing include polyethylene wax,
Polypropylene wax, polytetrafluoroethylwax wax, palm wax, oxidized polyethylene wax and chlorinated polypropylene wax it is one or more.
7. food cover inner-wall paint according to claim 1, which is characterized in that the organic solvent includes arene
Solvent, alcohols solvent, ether solvent, esters solvent and ketones solvent it is one or more；
The aromatic solvent includes in toluene, dimethylbenzene, trimethylbenzene, Solvesso100, Solvesso120 and Solvesso150
It is one or more；The alcohols solvent includes one or more in n-butanol, isobutanol, diacetone alcohol and dipropylene glycol；
The ether solvent includes in glycol ether, ethylene glycol monobutyl ether, butyl, ethylene glycol phenyl ether and propylene glycol monomethyl ether
It is one or more；The esters solvent includes propylene glycol methyl ether acetate, dimethyl ester solvent, butyl acetate and binary acid esters
In the mixed solvent it is one or more；The binary acid esters mixed solvent include dimethyl succinate, dimethyl glutarate, oneself
It is a variety of in acid dimethyl；The ketones solvent includes one or more in methyl iso-butyl ketone (MIBK), isophorone and cyclohexanone.
8. food cover inner-wall paint according to claim 1, which is characterized in that with the food cover inner-wall paint
Quality is 100% meter, further includes following mass component：
Moistening flatting agent 0.05~0.20%
The moistening flatting agent includes organo-silicon compound, acrylate compounds, acetylenic glycols ethoxy compound and mineral oil
It is one or more in class compound.
9. a kind of preparation method of food cover inner-wall paint as described in claim 1~8 any one, which is characterized in that
Include the following steps：
Epoxy resin solution is prepared by the dissolving of part organic solvent in epoxy resin；
Under stirring, epoxy resin solution, phenolic resin and toughener are added into remaining organic solvent, stirring is equal
It is even；Adhesion promoter, catalyst is added and increases sliding wax, is stirred under 900~1000rpm, obtains food cover inner-wall paint.
10. food cover inner-wall paint according to claim 1, which is characterized in that consolidating for the epoxy resin solution contains
It is 30~40%.
11. a kind of food cover inner-wall paint as described in claim 1~8 any one is in food in sheet material roller coating technology
Application.
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| CN111363507A (en) * | 2018-12-25 | 2020-07-03 | 霍尼韦尔特性材料和技术（中国）有限公司 | Coating composition and application thereof |
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| CN111363507A (en) * | 2018-12-25 | 2020-07-03 | 霍尼韦尔特性材料和技术（中国）有限公司 | Coating composition and application thereof |
| CN111363507B (en) * | 2018-12-25 | 2023-06-30 | 霍尼韦尔特性材料和技术（中国）有限公司 | Coating composition and application thereof |
| CN110041803A (en) * | 2019-04-11 | 2019-07-23 | 益帆涂料(无锡)有限公司 | A kind of bakelite part coating and its spraying method outside |
| CN110330857A (en) * | 2019-06-11 | 2019-10-15 | 清远慧谷新材料技术有限公司 | Food packaging metallic paint and preparation method thereof |
| CN110511640A (en) * | 2019-08-29 | 2019-11-29 | 苏州长业材料技术有限公司 | Can-coating and preparation method thereof without bisphenol-A |
| CN112266698A (en) * | 2020-09-30 | 2021-01-26 | 苏州市三新材料科技股份有限公司 | Transparent coating for high-scratch-resistance tank and preparation method thereof |
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| CN112322150A (en) * | 2020-09-30 | 2021-02-05 | 苏州市三新材料科技股份有限公司 | Golden matte coating for bamboo shoot cans and preparation method thereof |
| CN112266684B (en) * | 2020-09-30 | 2022-04-26 | 苏州市三新材料科技股份有限公司 | High-sulfur-resistance protein coating for beverage cans and preparation method thereof |
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